USB loader

Hi. I have a new black Wii and I modded it with the softmod any wii guide. It worked for a week but today I tried a new usb loader and now I can't get my old one running again. The new loader is not working either it reboot my console. I tried to install and uninstall wads without any success.

I tried 2 more loaders but nothing work. I would like to get back to a virgin and make to softmod again. I don't know what went wrong and need to start over.

I read the guide to virginize my wii but I saw: don't do this if you bought your wii this year.

Yes i used the cfg usb loader for a week. The blue one installed with the softmod. I tried the GX and wiiflow today and now I can't play my hdd games anymore. Maybe I deleted something, I don't know. Can I make my Wii a virgin and softmod again? Thank you guys.

Fat32 and it worked until today! I'm doing a checkdisk on it now. I had only 4 games on it so I will check, format and put the games back and see if it works again. Can you tell me why the blue usb loader is not working anymore when you check my syscheck?